Five battery-powered Mercedes Benz 307 vehicles, serving as normal commercial vehicles at various locations within Swedish State Power Board were tested over a period of three years, starting on the 1st of July 1982. This demonstration project was preceded by a short-term test on one vehicle, which produced very negative results, and major design modifications were therefore carried out on the vehicle before the demonstration project was started. Negative results also dominated the introductory stage of the demonstration project. This was mainly due to the fact that the service and maintenance agreement concluded with the supplier was not up to expectations. After some time, service and maintenance were transferred to our Heavy Transport Dept., which proved favourable results. After this re-assignment of duties, it became possible to assess the performance of the vehicles in relation to the requirements needed for our applications. The tests proved that the limitations of the vehicles in terms of range per charge, speed and load-carrying capacity did not significantly affect their usability in the selected applications. The specific energy consumption was found to be highly dependent on a number of different conditions that had no equivalent in petrol-engined vehicles. In the first place, the driving technique of the driver and the daily distance travelled by the vehicle had a major influence. In addition, the performance of batteries supplied by different manufacturers varied within wide limits. The overall mean energy consumption from the mains was 1.44 kWh/km, and the mean distance travelled per working day was 31 km. (ERA citation 12:047786)
Electric Vehicles in Commercial Applications - Demonstration Project
1986
33 pages
Report
No indication
English
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